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Other Income (Disaggregation of Revenue) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disaggregation of Revenue [Line Items] |  |  |
Other Income | $ 73.6 | $ 66.9 | $ 83.4
Ancillary Product Profit Sharing [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 33.4 | 34.1 | 60.6
Interest Income [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 26.2 | 19.7 | 6.6
Remarketing Fees [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 12.1 | 10.7 | 13.4
Other [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 1.9 | $ 2.4 | $ 2.8
Transferred over Time [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 60.2 |  |
Transferred over Time [Member] | Ancillary Product Profit Sharing [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 33.4 |  |
Transferred over Time [Member] | Interest Income [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 26.2 |  |
Transferred over Time [Member] | Remarketing Fees [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 0.0 |  |
Transferred over Time [Member] | Other [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 0.6 |  |
Transferred at Point in Time [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 13.4 |  |
Transferred at Point in Time [Member] | Ancillary Product Profit Sharing [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 0.0 |  |
Transferred at Point in Time [Member] | Interest Income [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 0.0 |  |
Transferred at Point in Time [Member] | Remarketing Fees [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 12.1 |  |
Transferred at Point in Time [Member] | Other [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 1.3 |  |
Third Party Providers [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 60.1 |  |
Third Party Providers [Member] | Ancillary Product Profit Sharing [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 33.4 |  |
Third Party Providers [Member] | Interest Income [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 26.2 |  |
Third Party Providers [Member] | Remarketing Fees [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 0.0 |  |
Third Party Providers [Member] | Other [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 0.5 |  |
Dealers [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 13.5 |  |
Dealers [Member] | Ancillary Product Profit Sharing [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 0.0 |  |
Dealers [Member] | Interest Income [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 0.0 |  |
Dealers [Member] | Remarketing Fees [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | 12.1 |  |
Dealers [Member] | Other [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Other Income | $ 1.4 |  |

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